User Manual

20
PHYSICAL CHARACTERISTICS:
 SIZE AND WEIGHT:
Main Unit: (4.27”Wx2.95”Hx5.64”L) 1lbs 14oz
Remote Unit: (1.58”W x 0.65”H x 2.00”L) 1.0 oz
Transport Blade type, 451 017-3: 600 Knots airspeed, 1.4 lbs
Business Rod type, 451 017-2: 350 Knots airspeed, 0.5 lb
General Aviation whip type,
451 017-1: 300 Knots airspeed, 0.25 lb
Portable Antenna, 451 017-4: (17”L) 4.0 oz
Mounting Tray & Clamp holder: (4.51”W x 0.75”H x 5.87”L) 4.0 oz
 MOUNTING HOLE SPACING:
Mounting Tray: 4 Trapezoid Corners (L1=2.76”; L2=1.76”; H=2.01”)
Remote Unit: 4 Rectangular Corners (1.825”W x 0.490”H)
Fixed Antenna: 7 / 5 / 1 Holes (0.500” Diameter) for Blade / Rod / Whip
respectively
 CASE AND COLOR:
No Sharp Edges, High Impact, Flame Retorted, Fire Resistant, Waterproof, High,
Temperature ABS Plastic, Safety International Orange Color.
 GENERAL SPECIFICATIONS (STANDARD CONDITIONS):
 TRANSMITTER:
Operating Frequencies: 406.028 MHz ± 0.001 MHz
121.500 MHz ± 0.005 %
243.000 MHz ± 0.005 %
(Note: AK-451-2D/6D/20D/21D/23D will turn off 243 MHz)
Short term stability ≤ 2 x 10
9
/100ms
Medium slope -1 to +1x10
9
/min
Medium Residual variant ≤ 3 x 10
9
Modulation
Characteristics: Audio Sweep Frequency: Download
Sweeping: (1600-300) Hz
Sweep Rate: 3 Hz ± 1 Hz
Modulation Factor: More than 0.85
Occupied Bandwidth: Less than 25 Hz
Voice Modulation: Included
Modulation Duty Cycle: (33-55) % Square Wave AM Continuous
Peak Effective Radiated50mW @ 121.5 MHz
RF Power (PERP): 50mW @ 125/243.0 MHz
5W +/- 1.58W @ 406.028 MHz
(35.34 to 38.18) dBm @ 406.028 MHz